1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_UI_GTK_THEME_INSTALL_BUBBLE_VIEW_GTK_H_
6#define CHROME_BROWSER_UI_GTK_THEME_INSTALL_BUBBLE_VIEW_GTK_H_
7#pragma once
8
9#include <gtk/gtk.h>
10
11#include "base/basictypes.h"
12#include "content/common/notification_observer.h"
13#include "content/common/notification_registrar.h"
14#include "ui/base/gtk/gtk_signal.h"
15
16class ThemeInstallBubbleViewGtk : public NotificationObserver {
17 public:
18  static void Show(GtkWindow* parent);
19
20  // NotificationObserver implementation.
21  virtual void Observe(NotificationType type,
22                       const NotificationSource& source,
23                       const NotificationDetails& details);
24
25 private:
26  explicit ThemeInstallBubbleViewGtk(GtkWidget* parent);
27
28  virtual ~ThemeInstallBubbleViewGtk();
29
30  void increment_num_loading() { num_loads_extant_++; }
31
32  // Create the widget hierarchy.
33  void InitWidgets();
34
35  // Reposition |widget_| to be centered over |parent_|.
36  void MoveWindow();
37
38  // Our parent is going down; self destruct.
39  CHROMEGTK_CALLBACK_0(ThemeInstallBubbleViewGtk, gboolean, OnUnmapEvent);
40
41  // Draw the background. This is only signalled if we are using a compositing
42  // window manager, otherwise we just use ActAsRoundedWindow().
43  CHROMEGTK_CALLBACK_1(ThemeInstallBubbleViewGtk, gboolean,
44                       OnExpose, GdkEventExpose*);
45
46  GtkWidget* widget_;
47
48  // The parent browser window, over which we position ourselves.
49  GtkWidget* parent_;
50
51  // The number of loads we represent. When it reaches 0 we delete ourselves.
52  int num_loads_extant_;
53
54  NotificationRegistrar registrar_;
55
56  // Our one instance. We don't allow more than one to exist at a time.
57  static ThemeInstallBubbleViewGtk* instance_;
58
59  DISALLOW_COPY_AND_ASSIGN(ThemeInstallBubbleViewGtk);
60};
61
62#endif  // CHROME_BROWSER_UI_GTK_THEME_INSTALL_BUBBLE_VIEW_GTK_H_
63